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| author | Oliver Stannard <oliver.stannard@arm.com> | 2014-04-02 16:10:33 +0000 |
|---|---|---|
| committer | Oliver Stannard <oliver.stannard@arm.com> | 2014-04-02 16:10:33 +0000 |
| commit | af48fc4136b1fca9b0542bc858a3bddbf87dcc02 (patch) | |
| tree | fc54c4ddfe9a93492d7acc569375f5f77508e8de /test/CodeGen/Thumb2 | |
| parent | 5524d787b7601e567b3cf4cbe3fcbcad93bb8294 (diff) | |
| download | llvm-af48fc4136b1fca9b0542bc858a3bddbf87dcc02.tar.gz llvm-af48fc4136b1fca9b0542bc858a3bddbf87dcc02.tar.bz2 llvm-af48fc4136b1fca9b0542bc858a3bddbf87dcc02.tar.xz | |
ARM: Add support for segmented stacks
Patch by Alex Crichton, ILyoan, Luqman Aden and Svetoslav.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205430 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb2')
| -rw-r--r-- | test/CodeGen/Thumb2/segmented-stacks.ll | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb2/segmented-stacks.ll b/test/CodeGen/Thumb2/segmented-stacks.ll new file mode 100644 index 0000000000..602fc84e25 --- /dev/null +++ b/test/CodeGen/Thumb2/segmented-stacks.ll @@ -0,0 +1,32 @@ +; RUN: llc < %s -mtriple=thumb-linux-androideabi -march=thumb -mcpu=arm1156t2-s -mattr=+thumb2 -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-android +; RUN: llc < %s -mtriple=thumb-linux-androideabi -march=thumb -mcpu=arm1156t2-s -mattr=+thumb2 -segmented-stacks -filetype=obj + + +; Just to prevent the alloca from being optimized away +declare void @dummy_use(i32*, i32) + +define void @test_basic() { + %mem = alloca i32, i32 10 + call void @dummy_use (i32* %mem, i32 10) + ret void + +; Thumb-android: test_basic: + +; Thumb-android: push {r4, r5} +; Thumb-android-NEXT: mrc p15, #0, r4, c13, c0, #3 +; Thumb-android-NEXT: mov r5, sp +; Thumb-android-NEXT: ldr r4, [r4, #252] +; Thumb-android-NEXT: cmp r4, r5 +; Thumb-android-NEXT: blo .LBB0_2 + +; Thumb-android: mov r4, #48 +; Thumb-android-NEXT: mov r5, #0 +; Thumb-android-NEXT: push {lr} +; Thumb-android-NEXT: bl __morestack +; Thumb-android-NEXT: ldr lr, [sp], #4 +; Thumb-android-NEXT: pop {r4, r5} +; Thumb-android-NEXT: bx lr + +; Thumb-android: pop {r4, r5} + +} |